405034688442 has 16 divisors (see below), whose sum is σ = 810903651552. Its totient is φ = 134872517040.

The previous prime is 405034688423. The next prime is 405034688473. The reversal of 405034688442 is 244886430504.

It is a junction number, because it is equal to n+sod(n) for n = 405034688391 and 405034688400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34755133 + ... + 34766784.

It is an arithmetic number, because the mean of its divisors is an integer number (50681478222).

Almost surely, 2^405034688442 is an apocalyptic number.

405034688442 is an abundant number, since it is smaller than the sum of its proper divisors (405868963110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405034688442 is a wasteful number, since it uses less digits than its factorization.

405034688442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69522893.

The product of its (nonzero) digits is 2949120, while the sum is 48.

The spelling of 405034688442 in words is "four hundred five billion, thirty-four million, six hundred eighty-eight thousand, four hundred forty-two".